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refactoring code

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This commit is contained in:
Stephan Richter
2022-04-20 09:21:45 +02:00
parent b38b40a677
commit 2c99aa20b3
8 changed files with 199 additions and 128 deletions
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2
pom.xml
View File

@@ -6,7 +6,7 @@
<groupId>org.example</groupId>
<artifactId>Widerhall</artifactId>
<version>0.0.16</version>
<version>0.0.17</version>
<build>
<plugins>
<plugin>

22
src/main/java/de/srsoftware/widerhall/Util.java
View File

@@ -1,9 +1,12 @@
package de.srsoftware.widerhall;
import de.srsoftware.tools.translations.Translation;
import de.srsoftware.widerhall.data.MailingList;
import de.srsoftware.widerhall.data.User;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.servlet.http.HttpServletRequest;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
@@ -11,6 +14,8 @@ import java.security.NoSuchAlgorithmException;
import java.util.Map;
import java.util.stream.Collectors;
import static de.srsoftware.widerhall.Constants.*;
public class Util {
private static final MessageDigest SHA256 = getSha256();
@@ -92,4 +97,21 @@ public class Util {
}
return value;
}
public static User getUser(HttpServletRequest req) {
var o = req.getSession().getAttribute(USER);
return o instanceof User ? (User) o : null;
}
public static String getPath(HttpServletRequest req) {
var path = req.getPathInfo();
return path == null ? INDEX : path.substring(1);
}
public static MailingList getMailingList(HttpServletRequest req) {
var listEmail = req.getParameter(LIST);
if (listEmail == null || listEmail.isBlank()) return null;
return MailingList.load(listEmail);
}
}

76
src/main/java/de/srsoftware/widerhall/data/ListMember.java
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@@ -11,6 +11,7 @@ import java.sql.SQLException;
import java.util.*;
import static de.srsoftware.widerhall.Constants.*;
import static de.srsoftware.widerhall.Constants.STATE;
/**
* @author Stephan Richter
@@ -26,19 +27,21 @@ public class ListMember {
private static final String USER_EMAIL = "user_email";
private static final String STATE = "state";
private final String listEmail,token,userEmail;
private MailingList list;
private User user;
private final String token;
private final int state;
/**
* create a new list member object
* @param listEmail
* @param userEmail
* @param list
* @param user
* @param state
* @param token
*/
public ListMember(String listEmail, String userEmail, int state, String token){
this.listEmail = listEmail;
this.userEmail = userEmail;
public ListMember(MailingList list, User user, int state, String token){
this.list = list;
this.user = user;
this.state = state;
this.token = token;
}
@@ -59,19 +62,18 @@ public class ListMember {
if (rs.next()){
var lm = ListMember.from(rs);
rs.close();
User user = User.loadAll(List.of(lm.userEmail)).stream().findAny().orElse(null);
if (user != null){
if (lm.user != null){
int newState = lm.state ^ STATE_AWAITING_CONFIRMATION | STATE_SUBSCRIBER;
Database.open()
.update(TABLE_NAME)
.set(TOKEN,null)
.set(STATE, newState) //drop confirmation state, set subscriber state
.where(LIST_EMAIL,lm.listEmail)
.where(USER_EMAIL,lm.userEmail)
.where(LIST_EMAIL,lm.list.email())
.where(USER_EMAIL,lm.user.email())
.compile()
.run();
}
return user;
return lm.user;
}
return null;
}
@@ -91,7 +93,7 @@ public class ListMember {
if ((state & STATE_AWAITING_CONFIRMATION) > 0){
token = Util.sha256(String.join("/",list.email(),user.email(),user.salt()));
}
return new ListMember(list.email(),user.email(),state,token).save();
return new ListMember(list,user,state,token).save();
}
/**
@@ -118,8 +120,8 @@ public class ListMember {
*/
public static ListMember from(ResultSet rs) throws SQLException {
return new ListMember(
rs.getString(LIST_EMAIL),
rs.getString(USER_EMAIL),
MailingList.load(rs.getString(LIST_EMAIL)),
User.load(rs.getString(USER_EMAIL)),
rs.getInt(STATE),
rs.getString(TOKEN));
}
@@ -175,28 +177,24 @@ public class ListMember {
return null;
}
/**
* return a map of User → State for a given MailingList
* @param listEmail
* @return
* @throws SQLException
*/
public static Map<User,Integer> of(String listEmail) throws SQLException {
// Step 1: create mal USER_EMAIL → STATE for MailingList
var rs = Database.open()
.select(TABLE_NAME)
.where(LIST_EMAIL,listEmail)
.compile()
.exec();
var temp = new HashMap<String,Integer>();
while (rs.next()) temp.put(rs.getString(USER_EMAIL),rs.getInt(STATE));
public static Set<ListMember> of(MailingList list) throws SQLException {
var rs = Database.open().select(TABLE_NAME).where(LIST_EMAIL,list.email()).compile().exec();
var set = new HashSet<ListMember>();
try {
while (rs.next()) set.add(ListMember.from(rs));
} finally {
rs.close();
// Step 2: map user emails to users
var result = new HashMap<User,Integer>();
User.loadAll(temp.keySet())
.stream()
.forEach(user -> result.put(user,temp.get(user.email())));
return result;
}
return set;
}
public Map<String,Object> safeMap(){
return Map.of(
EMAIL,user.email(),
NAME,user.name(),
STATE,ListMember.stateText(state)
);
}
/**
@@ -207,8 +205,8 @@ public class ListMember {
private ListMember save() throws SQLException {
var req = Database.open()
.insertInto(TABLE_NAME)
.set(LIST_EMAIL,listEmail)
.set(USER_EMAIL,userEmail)
.set(LIST_EMAIL,list.email())
.set(USER_EMAIL,user.email())
.set(STATE,state);
if (token != null) req.set(TOKEN,token);
req.compile().run();
@@ -255,4 +253,8 @@ public class ListMember {
req.where(LIST_EMAIL,list.email()).where(USER_EMAIL,user.email()).compile().run();
}
}
public User user(){
return user;
}
}

48
src/main/java/de/srsoftware/widerhall/data/MailingList.java
View File

@@ -7,12 +7,10 @@ import de.srsoftware.widerhall.mail.SmtpClient;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import javax.mail.Address;
import javax.mail.Message;
import javax.mail.MessagingException;
import javax.mail.internet.AddressException;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.UnsupportedEncodingException;
import java.sql.ResultSet;
import java.sql.SQLException;
@@ -49,7 +47,7 @@ public class MailingList implements MessageHandler {
private final SmtpClient smtp;
private final ImapClient imap;
private static final HashMap<String,MailingList> lists = new HashMap<>();
private static final HashMap<String,MailingList> cache = new HashMap<>();
/**
* create a new ML object
@@ -145,7 +143,7 @@ public class MailingList implements MessageHandler {
private void forward(Message message) throws MessagingException {
try {
var emails = members().stream().map(User::email).toList();
var emails = members().stream().map(ListMember::user).map(User::email).toList();
String sender = (state & STATE_FORWARD_FROM) > 0 ? message.getFrom()[0].toString() : email();
smtp.bccForward(sender,message,emails);
} catch (SQLException e) {
@@ -163,8 +161,8 @@ public class MailingList implements MessageHandler {
*/
private static MailingList from(ResultSet rs) throws SQLException {
String email = rs.getString(EMAIL);
var ml = lists.get(email);
if (ml == null) lists.put(email,ml = new MailingList(rs.getString(EMAIL),
var ml = cache.get(email);
if (ml == null) cache.put(email,ml = new MailingList(rs.getString(EMAIL),
rs.getString(NAME),
rs.getString(IMAP_HOST),
rs.getInt(IMAP_PORT),
@@ -213,7 +211,7 @@ public class MailingList implements MessageHandler {
*/
public static MailingList load(String listEmail) {
if (listEmail == null) return null;
var ml = lists.get(listEmail);
var ml = cache.get(listEmail);
if (ml == null) try {
var rs = Database.open()
.select(TABLE_NAME)
@@ -226,9 +224,40 @@ public class MailingList implements MessageHandler {
return ml;
}
private Set<User> members() throws SQLException {
return ListMember.of(email()).keySet();
public boolean mayBeAlteredBy(User user) {
if (user.hashPermission(PERMISSION_ADMIN)) return true;
try {
if (ListMember.load(this,user).hasState(ListMember.STATE_OWNER)) return true;
} catch (SQLException e) {
LOG.debug("Error loading list member for ({}, {})",user.email(),email());
}
return false;
}
public boolean mayBeTestedBy(User user) {
if (user.hashPermission(PERMISSION_ADMIN)) return true;
try {
if (ListMember.load(this,user).hasState(ListMember.STATE_OWNER)) return true;
} catch (SQLException e) {
LOG.debug("Error loading list member for ({}, {})",user.email(),email());
}
return false;
}
public Set<ListMember> members() throws SQLException {
return ListMember.of(this);
}
public boolean membersMayBeListedBy(User user) {
if (user.hashPermission(PERMISSION_ADMIN)) return true;
try {
if (ListMember.load(this,user).hasState(ListMember.STATE_OWNER)) return true;
} catch (SQLException e) {
LOG.debug("Error loading list member for ({}, {})",user.email(),email());
}
return false;
}
/**
* creates a map from the current ML object containing only email and name of the ML
@@ -424,5 +453,4 @@ public class MailingList implements MessageHandler {
return new ArrayList<InternetAddress>().stream();
}
}
}

11
src/main/java/de/srsoftware/widerhall/data/User.java
View File

@@ -138,6 +138,17 @@ public class User {
return (permissions & permission) > 0;
}
public static User load(String email) throws SQLException {
var rs = Database.open().select(TABLE_NAME).where(EMAIL,email).compile().exec();
try {
if (rs.next()) {
return User.from(rs);
}
return null;
} finally {
rs.close();
}
}
/**
* Load the list of all users. Internally calls loadAll(null)

122
src/main/java/de/srsoftware/widerhall/web/Rest.java
View File

@@ -1,5 +1,6 @@
package de.srsoftware.widerhall.web;
import de.srsoftware.widerhall.Util;
import de.srsoftware.widerhall.data.ListMember;
import de.srsoftware.widerhall.data.MailingList;
import de.srsoftware.widerhall.data.User;
@@ -85,12 +86,25 @@ public class Rest extends HttpServlet {
return Map.of(SUCCESS,"Updated user permissions");
}
private Map enableList(MailingList list, User user, boolean enable) {
if (list == null) return Map.of(ERROR,"no list email provided!");
if (!list.mayBeAlteredBy(user)) Map.of(ERROR,t("You are not allowed to edit '{}'",list.email()));
try {
list.enable(enable);
return Map.of(SUCCESS,t("Mailing list '{}' was {}!",list.email(),enable ? "enabled" : "disabled"));
} catch (SQLException e) {
LOG.error("Failed to enable/disable mailing list: ",e);
return Map.of(ERROR,t("Failed to update list '{}'",list.email()));
}
}
public String handleGet(HttpServletRequest req, HttpServletResponse resp){
Object o = req.getSession().getAttribute(USER);
var user = Util.getUser(req);
var path = Util.getPath(req);
JSONObject json = new JSONObject();
var path = req.getPathInfo();
path = path == null ? INDEX : path.substring(1);
if (o instanceof User user){
if (user != null){
json.put(USER,user.safeMap());
switch (path) {
case USER_LIST:
@@ -130,38 +144,38 @@ public class Rest extends HttpServlet {
}
public String handlePost(HttpServletRequest req, HttpServletResponse resp){
Object o = req.getSession().getAttribute(USER);
JSONObject json = new JSONObject();
var path = req.getPathInfo();
path = path == null ? INDEX : path.substring(1);
if (o instanceof User user){
var user = Util.getUser(req);
var path = Util.getPath(req);
JSONObject json = new JSONObject();
if (user != null){
json.put(USER,user.safeMap());
var listEmail = req.getParameter(LIST);
var list = Util.getMailingList(req);
var userEmail = req.getParameter(EMAIL);
var permissions = req.getParameter(PERMISSIONS);
switch (path) {
case LIST_DETAIL:
json.putAll(listDetail(listEmail,user));
json.putAll(listDetail(list,user));
break;
case LIST_DISABLE:
json.putAll(enableList(listEmail,user,false));
json.putAll(enableList(list,user,false));
break;
case LIST_ENABLE:
json.putAll(enableList(listEmail,user,true));
json.putAll(enableList(list,user,true));
break;
case LIST_HIDE:
json.putAll(hideList(listEmail,user,true));
json.putAll(hideList(list,user,true));
break;
case LIST_MEMBERS:
json.putAll(listMembers(listEmail,user));
json.putAll(listMembers(list,user));
break;
case LIST_SHOW:
json.putAll(hideList(listEmail,user,false));
json.putAll(hideList(list,user,false));
break;
case LIST_TEST:
json.putAll(testList(listEmail,user));
json.putAll(testList(list,user));
break;
case USER_ADD_PERMISSION:
if (user.hashPermission(User.PERMISSION_ADMIN)){
@@ -189,69 +203,45 @@ public class Rest extends HttpServlet {
}
}
private Map listDetail(String listEmail, User user) {
var ml = MailingList.load(listEmail);
if (ml == null) return Map.of(ERROR,t("Mailinglist {} unknown",listEmail));
private Map<String, String> hideList(MailingList list, User user, boolean hide) {
if (list == null) return Map.of(ERROR,"no list email provided!");
if (!list.mayBeAlteredBy(user)) Map.of(ERROR,t("You are not allowed to edit '{}'",list.email()));
try {
list.hide(hide);
return Map.of(SUCCESS,t("Mailing list '{}' was {}!",list.email(),hide ? "hidden" : "made public"));
} catch (SQLException e) {
LOG.error("Failed to (un)hide mailing list: ",e);
return Map.of(ERROR,t("Failed to update list '{}'",list.email()));
}
}
private Map listDetail(MailingList list, User user) {
if (list == null) return Map.of(ERROR,t("Mailinglist {} unknown",list.email()));
var map = new HashMap<>();
if (ml.hasState(MailingList.STATE_FORWARD_FROM)) map.put("forward_from",true);
if (list.hasState(MailingList.STATE_FORWARD_FROM)) map.put("forward_from",true);
return map;
}
private Map<String, Object> listMembers(String listEmail, User user) {
if (listEmail == null || listEmail.isBlank()) return Map.of(ERROR,"no list email provided!");
if (user.hashPermission(User.PERMISSION_ADMIN) || ListMember.listsOwnedBy(user).contains(listEmail)) {
private Map<String, Object> listMembers(MailingList list, User user) {
if (list == null) return Map.of(ERROR,"no list email provided!");
if (!list.membersMayBeListedBy(user)) Map.of(ERROR,t("You are not allowed to list members of '{}'",list.email()));
try {
var members = ListMember.of(listEmail)
.entrySet()
var members = list.members()
.stream()
.map(entry -> Map.of(
EMAIL,entry.getKey().email(),
NAME,entry.getKey().name(),
STATE,ListMember.stateText(entry.getValue())
))
.map(ListMember::safeMap)
.toList();
return Map.of(MEMBERS,members);
} catch (SQLException e) {
LOG.error("Failed to load member list: ",e);
return Map.of("error",t("Failed to load member list '{}'",listEmail));
return Map.of("error",t("Failed to load member list '{}'",list.email()));
}
}
return Map.of("error",t("You are not allowed to list members '{}'",listEmail));
}
private Map enableList(String listEmail, User user, boolean enable) {
if (listEmail == null || listEmail.isBlank()) return Map.of(ERROR,"no list email provided!");
if (user.hashPermission(User.PERMISSION_ADMIN) || ListMember.listsOwnedBy(user).contains(listEmail)){
private Map testList(MailingList list, User user) {
if (list == null) return Map.of(ERROR,"no list email provided!");
if (!list.mayBeTestedBy(user)) Map.of(ERROR,t("You are not allowed to test '{}'",list.email()));
try {
MailingList.load(listEmail).enable(enable);
return Map.of(SUCCESS,t("Mailing list '{}' was {}!",listEmail,enable ? "enabled" : "disabled"));
} catch (SQLException e) {
LOG.error("Failed to enable/disable mailing list: ",e);
return Map.of(ERROR,t("Failed to update list '{}'",listEmail));
}
}
return Map.of(ERROR,t("You are not allowed to edit '{}'",listEmail));
}
private Map<String, String> hideList(String listEmail, User user, boolean hide) {
if (listEmail == null || listEmail.isBlank()) return Map.of(ERROR,"no list email provided!");
if (user.hashPermission(User.PERMISSION_ADMIN) || ListMember.listsOwnedBy(user).contains(listEmail)){
try {
MailingList.load(listEmail).hide(hide);
return Map.of(SUCCESS,t("Mailing list '{}' was {}!",listEmail,hide ? "hidden" : "made public"));
} catch (SQLException e) {
LOG.error("Failed to (un)hide mailing list: ",e);
return Map.of("error",t("Failed to update list '{}'",listEmail));
}
}
return Map.of(ERROR,t("You are not allowed to edit '{}'",listEmail));
}
private Map testList(String listEmail, User user) {
if (listEmail == null || listEmail.isBlank()) return Map.of(ERROR,"no list email provided!");
try {
MailingList.load(listEmail).test(user);
list.test(user);
return Map.of(SUCCESS,t("Sent test email to {}",user.email()));
} catch (Exception e) {
LOG.warn("Failed to send test email",e);

24
src/main/java/de/srsoftware/widerhall/web/Web.java
View File

@@ -25,6 +25,7 @@ public class Web extends TemplateServlet {
private static final String CONFIRM = "confirm";
private static final Logger LOG = LoggerFactory.getLogger(Web.class);
private static final String ADMIN = "admin";
private static final String INSPECT = "inspect";
private static final String LOGIN = "login";
private static final String LOGOUT = "logout";
private static final String REGISTER = "register";
@@ -245,11 +246,15 @@ public class Web extends TemplateServlet {
}
private String handlePost(HttpServletRequest req, HttpServletResponse resp) {
var path = req.getPathInfo();
path = path == null ? INDEX : path.substring(1);
final var user = Util.getUser(req);
final var path = Util.getPath(req);
final var list = Util.getMailingList(req);
switch (path){
case ADD_LIST:
return addList(req,resp);
case INSPECT:
return inspect(req,resp);
case LOGIN:
return handleLogin(req,resp);
case REGISTER:
@@ -263,8 +268,21 @@ public class Web extends TemplateServlet {
return t("No handler for path {}!",path);
}
private String inspect(HttpServletRequest req, HttpServletResponse resp) {
var o = req.getSession().getAttribute(USER);
if (!(o instanceof User user)) {
return redirectTo(LOGIN,resp);
}
var post = req.getParameterMap();
var listEmail = req.getParameter(LIST);
var list = MailingList.load(listEmail);
if (list == null) return t("{} is does not denote a valid list",listEmail);
if (!list.mayBeAlteredBy(user)) {
}
LOG.debug("POST: {}",post);
return null;
}
private String redirectTo(String page, HttpServletResponse resp) {

2
static/templates/login.st
View File

@@ -6,7 +6,7 @@
<script src="js"></script>
<link rel="stylesheet" href="css" />
</head>
<body>
<body id="login">
«navigation()»
«messages()»
<h1>Widerhall login</h1>